using nutch 1.4 in ubuntu

I try to use nutch 1.4 crawler in ubuntu however when I try to execute nutcg with all the setting that are suggested in nutch wiki it gives this error: erogol@erogol-G50V:~/Desktop/search engine/apache-nutch-1.4-bin/runtime/local$ bin/nutch crawl urls -dir crawl -depth 1 bin/nutch: line 108: [: /home/erogol/Desktop/search: binary operator expected Exception in thread "main" java.lang.NoClassDefFoundError: engine/apache-nutch-1/4-bin /runtime/local/logs Caused by: java.lang.ClassNotFoundException: engine.apache-nutch- 1.4-bin.runtime.local.logs at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: engine/apache-nutch-1.4-bin/runtime/local/logs. Program will exit. Do you have any suggestion or idea to solve the using problem for nutch? Thanks in advance... all nutch knowers :)

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